Barbed staple



FIG. 1 is a perspective view of a barbed staple showing the new design;

FIG. 2 is an elevational view thereof;

FIG. 3 is an edge elevational view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a barbed staple, as shown and described. 